Opera cant login

Since today I cant log in to login.vivaldi.net with Opera for Android.
I use Opera for Android since several month for Vivaldi forum but today I stuck with log in.
Was there a change at forum software lately?
The browser of my mobile cant log in too, it is may Chromium based too.
Will try to install Chrome later and report here.

Cheers, mib
EDIT: I get Error 403 - Forbidden
EDIT2: Chrome for Android is working

Please report the issue to bugtracker and i will ping our admin tomorrow.

How to do a bug report for Vivaldi

Report each bug separately at https://vivaldi.com/bugreport/
Describe the issue as precise as you can.
Add some information about extensions you use.
Add information about the operating system and version you use.
Add some information which security tools you use.
If you have problems with video or audio give us information about your installed codecs and graphics
card/GPU.
Add a exact link to the page where the issue comes up and can be tested.
After reporting the issue, you will receive a confirmation mail from the bugtracker.
In a reply to this mail you can add more information and files (like screenshots or testcases) as
attachments and it will be added automatically to bug report.

If you have questions about the bug please ask in forum first and do not forget to post the VB-XXXXX
bug number (you can find it in confirmation mail).